Home / 13,405.48-18,497.88-7,435.60

Finding the Fourth Proportional to 13,405.48, 18,497.88 and 7,435.60

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Solution

The fourth proportional to 13,405.48, 18,497.88 and 7,435.60 is: 10,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.48 : 18,497.88 = 7,435.60 : x
  2. Step 2: Convert to fraction form
    13,405.48/18,497.88 = 7,435.60/x
  3. Step 3: Cross multiply
    13,405.48x = 18,497.88 × 7,435.60
  4. Step 4: Simplify right side
    13,405.48x = 137,542,836.53
  5. Step 5: Solve for x
    x = 137,542,836.53/13,405.48
  6. Step 6: Final answer
    x = 10,260.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.